2022-03-15 07:33:34 +00:00
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<!DOCTYPE html>
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<html>
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<!-- ahhh -->
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<body>
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<canvas id="myCanvas" width="1920" height="1080" style="border:1px solid #d3d3d3;">
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Your browser does not support the HTML5 canvas tag.</canvas>
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<script>
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function rad(degrees) {
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var pi = Math.PI;
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return degrees * (pi / 180);
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}
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function colourToText(colour) {
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return "rgb(" + colour[0] + "," + colour[1] + "," + colour[2] + ")"
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}
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function LerpRGB(a, b, t) {
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if (t < 0) {
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t *= -1
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}
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var newColor = [0, 0, 0];
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newColor[0] = a[0] + (b[0] - a[0]) * t;
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newColor[1] = a[1] + (b[1] - a[1]) * t;
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newColor[2] = a[2] + (b[2] - a[2]) * t;
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return newColor;
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}
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function draw_shape_sub(sides, radius, rotation, x, y, colour) {
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var denominator = sides - 2
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//var rot = Math.round((sides - 2) * 180 / sides * 2)
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var rot = (Math.round((sides - 2) * 180 / sides * 2)) * (1 / denominator)
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var piv = 360 / sides;
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var l = 1
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var stt = 0.5 * Math.PI - rad(rot) * l + rad(rotation);
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var end = 0;
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for (let i = 1; i < sides + 1; i++) {
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end = (stt + rad(rot));
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ctx.beginPath();
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ctx.arc(x + Math.cos(rad(90 + piv * i + rotation)) * radius, y + Math.sin(rad(90 + piv * i + rotation)) * radius, radius, stt, end, 0);
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ctx.strokeStyle = colour;
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ctx.stroke();
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ctx.beginPath();
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ctx.arc(x + Math.cos(rad(90 + piv * i + rotation)) * radius, y + Math.sin(rad(90 + piv * i + rotation)) * radius, radius, stt - rad(rot) * l, end - rad(rot) * l, 0);
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ctx.strokeStyle = colour;
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ctx.stroke();
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stt = end + -(rad(rot - piv)) //+rad(30);
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}
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}
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function draw_shape_fill(sides, radius, rotation, x, y, colour) {
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var rot = Math.round((sides - 2) * 180 / sides * 2)
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var piv = 360 / sides;
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var stt = 0.5 * Math.PI - rad(rot) + rad(rotation);
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var end = 0;
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var n = radius / ((radius / 10) * (radius / 10)) //pixel correction for mid leaf
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for (let i = 1; i < sides + 1; i++) {
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end = stt + rad(rot);
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ctx.beginPath();
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ctx.arc(x + Math.cos(rad(90 + piv * i + rotation)) * radius, y + Math.sin(rad(90 + piv * i + rotation)) * radius, radius, stt - (stt - end) / 2, end + rad(n), 0);
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ctx.fillStyle = colour;
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ctx.fill();
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ctx.beginPath();
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ctx.arc(x + Math.cos(rad(90 + piv * i + rotation)) * radius, y + Math.sin(rad(90 + piv * i + rotation)) * radius, radius, stt, end - (end - stt) / 2 + rad(n), 0);
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ctx.fillStyle = colour;
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ctx.fill();
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stt = end + -(rad(rot - piv)) //+rad(30);
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}
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}
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2022-03-15 11:51:43 +00:00
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2022-03-15 07:33:34 +00:00
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function render_clear() {
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ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
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ctx.fillStyle = "black";
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ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height);
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}
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function draw_triangle(ang, radius) {
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ctx.beginPath();
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2022-03-15 11:51:43 +00:00
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ctx.moveTo(centerX + Math.cos(rad(90 + 120 * 1 + ang)) * radius, centerY + Math.sin(rad(90 + 120 * 1 + ang)) * radius);
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ctx.lineTo(centerX + Math.cos(rad(90 + 120 * 2 + ang)) * radius, centerY + Math.sin(rad(90 + 120 * 2 + ang)) * radius);
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ctx.lineTo(centerX + Math.cos(rad(90 + 120 * 3 + ang)) * radius, centerY + Math.sin(rad(90 + 120 * 3 + ang)) * radius);
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ctx.lineTo(centerX + Math.cos(rad(90 + 120 * 1 + ang)) * radius, centerY + Math.sin(rad(90 + 120 * 1 + ang)) * radius);
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2022-03-15 07:33:34 +00:00
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ctx.strokeStyle = "red";
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ctx.stroke();
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}
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var c = document.getElementById("myCanvas");
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var ctx = c.getContext("2d");
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var sides_org = 3;
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var r = 300;
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var deg_per_sec = 30;
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var time = 120;
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var fps = 60;
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var rot_org = Math.round((sides_org - 2) * 180 / sides_org * 2)
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var piv = 360 / sides_org;
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var angle = 0;
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2022-03-15 11:51:43 +00:00
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centerX = 1920 / 2//1875/2;
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centerY = 1080 / 2//950/2;//-(Math.tan(30*Math.PI/180)*width/2);
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2022-03-15 07:33:34 +00:00
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j = 0;
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i = 0;
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n_angle = 0
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i_angle = 0
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tmp_a = angle
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//var capturer = new CCapture( { format: 'webm' } );
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/*
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var capturer = new CCapture( {
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format: 'webm',
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framerate: 60,
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verbose: true
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} );
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*/
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//capturer.start();
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/*
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function animate() {
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requestAnimationFrame( animate );
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test();
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}
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*/
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delMe = 0
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function render() {
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if (i < time / (1 / fps)) {
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setTimeout(() => {
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render();
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//requestAnimationFrame(test);
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angle = j;
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render_clear();
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r = 400
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tmpA = (Math.asin(Math.cos(rad(angle)))) / (2 * Math.PI) + .75
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tmpB = Math.cos(rad(angle)) / 4 + 0.75
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tmpC = Math.cos(angle * (3 * Math.PI / 180)) / 4 + 0.75
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tmpD = (Math.sin(30 * Math.PI / 180)) / Math.sin((150 - (angle - 120 * Math.floor(angle / 120)) * Math.PI / 180))
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fl = angle - 120 * Math.floor(angle / 120)
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tmpE = 1 / (2 * Math.cos(Math.PI / 3 - (fl * Math.PI / 180)))
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//console.log(tmpE)
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//console.log("angle: " + angle + " tmpC: " +Math.round(tmpC * 1000) / 1000)
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/*
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console.log(Math.cos(0*(3*Math.PI/180))/4+0.75)
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console.log(Math.cos(30*(3*Math.PI/180))/4+0.75)
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console.log(Math.cos(60*(3*Math.PI/180))/4+0.75)
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console.log(Math.cos(180*(3*Math.PI/180))/4+0.75)
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*/
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s = 400
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speed_mult = 1
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tmpF = 1 / (2 * Math.sin(Math.PI / 180 * (150 - angle * speed_mult + 120 * Math.floor(angle * speed_mult / 120))))
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tmpAng = n_angle
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fl1 = (n_angle - 2 * Math.PI / 3 * (Math.floor(3 * n_angle / (2 * Math.PI))))
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t1 = Math.abs(Math.sin(Math.PI / 3 - fl1) / (2 * (Math.cos(Math.PI / 3 - fl1)) ** 2))
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n_angle += 1 / (t1 + 1)
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new_angle = -120 * tmpF + 120
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tmpG = 1 / (2 * Math.sin(Math.PI / 180 * (150 - angle * speed_mult + 120 * Math.floor(angle * speed_mult / 120))))
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//console.log("angle: " + t1 + " | fl1 : "+ fl1)
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angle_accident = 120 * Math.floor(angle * speed_mult / 120)
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out_angle = 0
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i_angle += angle - tmp_a
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tmp_a = angle
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if (i_angle > 120) {
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i_angle -= 120
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}
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if (i_angle < 60) {
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out_angle = 120 / (2 * Math.cos(rad(i_angle))) - 60
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}
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else {
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out_angle = -120 / (2 * Math.cos(2 * Math.PI / 3 - (i_angle * Math.PI / 180))) + 180
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}
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//console.log("angle: " + i_angle + " | out A: " + out_angle)
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tmpFinal = 1 / (2 * Math.sin(Math.PI / 180 * (150 - out_angle * speed_mult + 120 * Math.floor(out_angle * speed_mult / 120))))
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//console.log(400*tmpFinal-delMe)
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delMe = 400 * tmpFinal
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//draw_triangle(180+0,s)
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//draw_triangle(180+angle*speed_mult,s*tmpF)
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//draw_triangle(180+out_angle*speed_mult,s*tmpFinal)
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//draw_triangle(180+new_angle*speed_mult,s*tmpG)
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for (let i = 0; i < 25; i++) {
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draw_triangle(180+out_angle*speed_mult*i,s*tmpFinal**i)
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//draw_triangle(180+angle*speed_mult*i,s*tmpF**i)
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}
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height = 400
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L = height / 2 * (Math.asin(Math.cos(angle * Math.PI / height)) / Math.PI) + height * 3 / 4
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L2 = -(.5 * angle - height * Math.floor(angle / (height * 2))) + height
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B = rad(180) - Math.asin(height * Math.sin(rad(30)) / L2)
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theFinalAngle = rad(150) - B
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console.log("L :" + L2 + " | B: " + B * 180 / Math.PI)
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//draw_triangle(180+ (theFinalAngle*180/Math.PI) ,L)
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//draw_triangle((angle-180)/2.8,tmpA*400)
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2022-03-15 11:51:43 +00:00
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//draw_shape(7,300,0,centerX,centerY,"red");
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//draw_shape_sub(7,300,0,centerX,centerY,"blue");
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//draw_shape_fill(5,300,angle,centerX,centerY,"purple");
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2022-03-15 07:33:34 +00:00
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/*
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2022-03-15 11:51:43 +00:00
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draw_shape_fill(5,300,angle,centerX,centerY,"purple");
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draw_shape_fill(5,115,-(angle+108),centerX,centerY,"red");
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draw_shape_fill(5,44,angle+108,centerX,centerY,"yellow");
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2022-03-15 07:33:34 +00:00
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2022-03-15 11:51:43 +00:00
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draw_shape(5,300,angle,centerX,centerY,"red");
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draw_shape(5,115,-(angle+108),centerX,centerY,"yellow");
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draw_shape(5,44,angle+108,centerX,centerY,"purple");
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2022-03-15 07:33:34 +00:00
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*/
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2022-03-15 11:51:43 +00:00
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//Draw_Spiral(4,400,0,centerX,centerY,'red');
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//Draw_Spiral_Pattern(50, 250, angle, centerX, centerY, 'red')
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//Draw_Shape_accident(4,300,angle,centerX,centerY,'red')
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//Draw_Spiral(10,400,-angle,centerX,centerY,'red');
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2022-03-15 07:33:34 +00:00
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2022-03-15 11:51:43 +00:00
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//draw_shape(99,300,angle,centerX,centerY,"red");
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2022-03-15 07:33:34 +00:00
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//draw_triangle(0);
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//draw_tri(angle);
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//draw_test_fill(angle);
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2022-03-15 11:51:43 +00:00
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//draw_shape(5,300,angle,centerX,centerY);
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//draw_shape(3,300,-angle,centerX,centerY)
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2022-03-15 07:33:34 +00:00
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2022-03-15 11:51:43 +00:00
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//draw_shape(7,400,angle,centerX,centerY)
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//draw_shape(6,r,-angle,centerX,centerY)
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2022-03-15 07:33:34 +00:00
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/*
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colour1 = [137, 54, 255];
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colour2 = [158, 255, 54];
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ncolour = LerpRGB(colour1, colour2, Math.cos(rad(angle)));
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*/
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colour1 = [137, 54, 255];
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colour2 = [158, 255, 54];
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//Draw_nodal_expanding(2.5,100000,angle*2+33000,angle*0, colour1,colour2,0.5, 5)
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//Draw_nodal_expanding(2.5,10000,angle,angle*0, colour1,colour2,0.5, 1)
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//console.log(angle*2)
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2022-03-15 11:51:43 +00:00
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//draw_shape(55,300,angle,centerX,centerY,"pink")
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2022-03-15 07:33:34 +00:00
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//Draw_Phyllotaxis(angle/5000+1);
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2022-03-15 11:51:43 +00:00
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//draw_shape_fill(4,400,angle,centerX,centerY,colourToText(ncolour));
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2022-03-15 07:33:34 +00:00
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2022-03-15 11:51:43 +00:00
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2022-03-15 07:33:34 +00:00
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//capturer.capture( document.getElementById("myCanvas") );
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}, (1000 / fps));
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j += deg_per_sec * 1 / fps;
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i += 1;
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}
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else {
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//capturer.stop();
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//capturer.save();
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}
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}
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render()
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//render_clear()
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//Draw_nodal(500, 100,33)
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2022-03-15 11:51:43 +00:00
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//draw_shape_fill(5,300,angle,centerX,centerY,"purple");
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//draw_shape_fill(5,115,angle+108,centerX,centerY,"red");
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//draw_shape(5,300,angle,centerX,centerY);
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2022-03-15 07:33:34 +00:00
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//Draw_center();
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2022-03-15 11:51:43 +00:00
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2022-03-15 07:33:34 +00:00
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2022-03-15 11:51:43 +00:00
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function Draw_nodal(radius, points, step, rotate, colour) { //catalogued
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2022-03-15 07:33:34 +00:00
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var angle = 360 / points * step
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ctx.beginPath();
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var start_angle = angle;
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var done = false;
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var total_moves = 1;
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2022-03-15 11:51:43 +00:00
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ctx.moveTo(centerX + (Math.cos(rad(angle + rotate)) * radius), centerY + (Math.sin(rad(angle + rotate)) * radius));
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2022-03-15 07:33:34 +00:00
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while (done != true) {
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if ((total_moves * step) % points != 0) {
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total_moves++
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}
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else {
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total_moves++
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done = true
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}
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}
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for (let z = 1; z <= total_moves; z++) {
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2022-03-15 11:51:43 +00:00
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ctx.lineTo(centerX + (Math.cos(rad(angle * z + rotate)) * radius), centerY + (Math.sin(rad(angle * z + rotate)) * radius));
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2022-03-15 07:33:34 +00:00
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}
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ctx.strokeStyle = colour;
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ctx.stroke();
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}
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2022-03-15 11:51:43 +00:00
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function Draw_rectangle_pattern1(angle, size, colour) { //catalogued
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2022-03-15 07:33:34 +00:00
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ctx.save();
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2022-03-15 11:51:43 +00:00
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ctx.translate(centerX, centerY)//-(Math.sin(rad(angle)) *centerX));
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2022-03-15 07:33:34 +00:00
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ctx.rotate(rad(angle + 180));
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ctx.beginPath();
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ctx.strokeStyle = colour;
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ctx.rect(-size, -size, size, size);
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ctx.stroke();
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ctx.restore();
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}
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function Draw_center() {
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ctx.beginPath();
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2022-03-15 11:51:43 +00:00
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ctx.moveTo(centerX - 100, centerY);
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ctx.lineTo(centerX + 100, centerY);
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ctx.moveTo(centerX, centerY - 100);
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ctx.lineTo(centerX, centerY + 100);
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2022-03-15 07:33:34 +00:00
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ctx.strokeStyle = "red";
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ctx.stroke();
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}
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</script>
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</body>
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</html>
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